Information recording device and method, program storage medium, and program

Abstract

The present invention relates to an information recording device and method, a program storage medium, and a program, wherein updated file system information can be recorded without changing a logical address. As shown to the upper side in FIG. 18 , in the event that data has been recorded, upon a file (Files (Stream+DB)) recorded in region B 112 being updated, an updated file is recorded at region B 112 ′ as shown at the middle in FIG. 18 . In conjunction with this, main FS (FS (Metadata)), inner side volume structure information, and anchor information, which had been recorded in region B 111 until this time, is rendered unreadable, and newly-generated file system information (FS (Metadata)), inner side volume structure information, and anchor information, are recorded in region B 111 ′ in an ISA which is an inner side SA region. The present invention can be applied to a Blu-Ray Disc recording/playing device.

1. An information recording device that adapts a write-at-once optical disc to be recorded upon multiple times, the information recording device comprising:
 means for setting a replacement region and a user region, and also initializing the write-at-once optical disc; 
 means for setting a first track where content is recorded in said user region, according to attributes of said content; 
 means for recording the content to the first track and first file system information of a placement of said content in said write-at-once optical disc to the write-at-once optical disc; 
 means for disabling readout of a non-defective area of the write-at-once optical disc where the first file system information of the placement of said content is recorded in said write-at-once optical disc in response to additional content being written to the write-at-once optical disc by the means for recording; and 
 the means for recording records second file system information of a placement of said content and said additional content on the write-at-once optical disc to the replacement region of the write-at-once optical disc, wherein the second file system information uses a same logical address as the first file system information. 
 
     
     
       2. The information recording device according to  claim 1 , wherein said means for setting sets, in said user region, a track for recording each of a main file and a mirror file, made up of the second file system information of the placement of said content and said additional content. 
     
     
       3. The information recording device according to  claim 1 , wherein said means for setting sets, in said user region, a track for recording a management file made up of information for managing said content, in addition to the first file system information of the placement of said content recorded in said recording medium. 
     
     
       4. The information recording device according to  claim 3 , wherein said means for setting sets, in said user region, a track for recording an original management file made up of information for managing said content, and a backup management file, in addition to the first file system information of the placement of said content recorded in said write-at-once optical disc. 
     
     
       5. The information recording device of  claim 1 , wherein the means for recording records the second file system information at an ISA (inner spare area) region of the write-at-once optical disc. 
     
     
       6. An information recording method of adapting a write-at-once optical disc to be recorded upon multiple times, the method comprising:
 setting a replacement region and a user region, and also initializing the write-at-once optical disc; 
 setting a first track where content is recorded in said user region, according to attributes of said content; 
 recording the content to the first track and first file system information of the placement of said content in said write-at-once optical disc to the write-at-once optical disc; 
 disabling readout of a non-defective area of the write-at-once optical disc where the first file system information of the placement of said content is recorded in said write-at-once optical disc in response to additional content being written to the write-at-once optical disc; and 
 recording second file system information of a placement of said content and said additional content to the replacement region of said write-at-once optical disc, wherein the second file system information uses a same logical address as the first file system information. 
 
     
     
       7. A non-transitory computer readable storage medium storing a computer-readable program, which when executed by a computer causes the computer to execute a method of adapting a write-at-once optical disc to be recorded upon multiple times, the method comprising:
 setting a replacement region and a user region, and also initializing the write-at-once optical disc; 
 setting a first track where content is recorded in said user region, according to attributes of said content; 
 recording the content to the first track and first file system information of the placement of said content in said write-at-once optical disc to the write-at-once optical disc; 
 disabling readout of a non-defective area of the write-at-once optical disc where the first file system information of the placement of said content is recorded in said write-at-once optical disc in response to additional content being written to the write-at-once optical disc; and 
 recording second file system information of a placement of said content and said additional content to the replacement region of said write-at-once optical disc, wherein the second file system information uses a same logical address as the first file system information. 
 
     
     
       8. An information recording device that adapts a write-at-once optical disc to be recorded upon multiple times, the information recording device comprising:
 an initializing unit that sets a replacement region and a user region, and also initializes the write-at-once optical disc; 
 a processor that sets a first track where content is recorded in said user region, according to attributes of said content; and 
 a recording unit that records the content to the first track and first file system information of a placement of said content in said write-at-once optical disc to the write-at-once optical disc, 
 wherein the processor disables readout of a non-defective area of the write-at-once optical disc where the first file system information of the placement of said content is recorded in said write-at-once optical disc in response to additional content being written to the recording medium by the recording unit, and 
 the recording unit records second file system information of a placement of said content and the additional content to the write-at-once optical disc, wherein the second file system information uses a same logical address as the first information.